CN201650856U - Impeller for centrifugal fan - Google Patents
Impeller for centrifugal fan Download PDFInfo
- Publication number
- CN201650856U CN201650856U CN 201020142168 CN201020142168U CN201650856U CN 201650856 U CN201650856 U CN 201650856U CN 201020142168 CN201020142168 CN 201020142168 CN 201020142168 U CN201020142168 U CN 201020142168U CN 201650856 U CN201650856 U CN 201650856U
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- CN
- China
- Prior art keywords
- blade
- wheel
- welded
- centrifugal blower
- blower fan
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides an impeller for a centrifugal fan, which is made of WELDOX700E steels and has a diameter of 2m to 4m. Small blades are welded between the impellers. The thickness of the wheel disc is gradually decreased from the center to the periphery. A support ring is welded at an air inlet of a wheel cover. The rear side of the wheel disc is welded with a secondary blade. The impeller of the utility model has big diameter and high strength, is capable of running speedily and can be applied to manufacturing the super-huge type centrifugal fans which have strong ventilating capability.
Description
Technical field
The utility model relates to the impeller of centrifugal blower, is a kind of impeller of the centrifugal blower that has major diameter and can turn round at a high speed.
Background technique
Impeller is the rotatable parts of the key of centrifugal blower, and impeller is made up of wheel disc, blade, wheel cap etc. usually, and blade is welded on the wheel disc, and wheel cap is welded on the blade.The diameter of impeller and running speed have determined the draught capacity of centrifugal blower.But a pair of contradiction when diameter and rotating speed adopts high rotating speed technology, but impeller diameter generally can not be greater than 1000mm; Adopt the major diameter technology, but the linear velocity of impeller is generally less than 130m/s; Therefore, these two kinds of centrifugal blowers that impeller is used to make, its draught capacity is still big inadequately.3. the large centrifugal fan of patent 01277758.7 is made of one the formula moulding with side plate and intake grill, and rotating speed can be very fast, and impeller diameter also can reach 1250mm, but diameter still is not very big, and exhaust outlet is less than intake grill, and draught capacity is still limited.
The model utility content
Model utility purpose: overcome the contradiction between the wheel speed and diameter in the past, the impeller of the centrifugal blower that provide a kind of big impeller diameter, can run up.
Technological scheme: the utility model is realized by following proposal:
The material of blade, wheel disc or wheel cap adopts the WELDOX700E steel, and the diameter of impeller is 2-4m; Blade is welded in the one side of wheel disc, is welded with small leaf between the blade; Wheel disc is uniform thickness not, and core is thicker than periphery; Wheel cap is welded in the another side of blade, and the intake grill place of wheel cap is welded with bracing ring; The wheel disc back side is welded with several pieces pairs blade.
In the utility model, the material of described blade, wheel disc and wheel cap all adopts the WELDOX700E steel, and intensity is higher, and the diameter of the impeller of making that welds is 2.8-4m.
The length of described small leaf approximately is the 1/5-1/2 of length of blade; Can be welded with a slice or several pieces small leaf as required between two blades.
The thickness of described wheel disc reduces equably from center to periphery or step type reduces, and the demand of high rotating speed to the parameter of parts satisfied in weight reduction when gaining in strength.
The material of described bracing ring is the very high forged steel of intensity.All welding all can be adopted the core wire material that is complementary with the WELDOX700E steel.
The utility model generally is the single suction formula blower fan that is used to make single intake grill, and several pieces pairs blade of wheel disc back side welding evenly distributes, and forms uniform negative pressuren zone when increasing impeller intensity overleaf, reduce axial force.
Beneficial effect: impeller of the present utility model, diameter is big, and the linear velocity of outer ring can reach 216m/s; And the intensity height satisfies the high-speed performance requirement that turns round.The extremely strong oversized centrifugal blower of draught capacity can be used for making, and the energy consumption of per unit volume can be reduced.
Description of drawings
Fig. 1 is a partly cut-away of the present utility model structural representation;
Fig. 2 is a structure schematic representation of the present utility model.
Embodiment
Choose the WELDOX700E steel and make 5,12 small leaf 6 of 12 blades, thick near the wheel disc core 3 of center hole respectively, wheel disc periphery 4 is thin, wheel cap 2; All leave mounting hole 10 on wheel disc and the wheel cap 2; And make 4 and pay blade 9.Select the high strength core wire material that is complementary with component materials again for use.
Press shown in Fig. 1,12 blades 5 and 12 small leaf 6 are welded on above the wheel disc periphery 4 of varied in thickness successively at interval; As shown in partly cut-away's cloud line 7 right sides among Fig. 1; Weld wheel cap 2 again, shown in partly cut-away cloud line 7 left sides among Fig. 1.At last, paying blades 9 with 4 divides equally successively and is welded on the wheel disc back side 8 draught fan impeller that promptly can be made into a kind of major diameter, can run up.
Claims (8)
1. a centrifugal blower fan blade wheel comprises blade (5), wheel disc, wheel cap (2), it is characterized in that: the material of blade (5), wheel disc or wheel cap adopts the WELDOX700E steel, and the diameter of impeller is 2-4m; Blade (5) is welded in the one side of wheel disc, is welded with small leaf (6) between the blade (5); Wheel disc is uniform thickness not, and core is thicker than periphery; Wheel cap (2) is welded in the another side of blade (5), and the intake grill place of wheel cap (2) is welded with bracing ring (1); The wheel disc back side (8) is welded with several pieces pairs blade (9).
2. a kind of centrifugal blower fan blade wheel according to claim 1 is characterized in that: the material of described blade (5), wheel disc and wheel cap (2) all adopts the WELDOX700E steel, and the diameter of the impeller of making that welds is 2.8-4m.
3. a kind of centrifugal blower fan blade wheel according to claim 1 is characterized in that: the length of described small leaf (6) is the 1/5-1/2 of blade (5) length.
4. according to claim 1 or 3 described a kind of centrifugal blower fan blade wheels, it is characterized in that: be welded with a slice or several pieces small leaf (6) between two blades (5).
5. a kind of centrifugal blower fan blade wheel according to claim 1 is characterized in that: the thickness of described wheel disc reduces equably from center to periphery or step type reduces.
6. a kind of centrifugal blower fan blade wheel according to claim 1 is characterized in that: the material of described bracing ring (1) is a forged steel.
7. a kind of centrifugal blower fan blade wheel according to claim 1 is characterized in that: described pair of blade (9) evenly distributes.
8. a kind of centrifugal blower fan blade wheel according to claim 1 and 2 is characterized in that: described welding is to adopt the core wire material that is complementary with the WELDOX700E steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020142168 CN201650856U (en) | 2010-03-25 | 2010-03-25 | Impeller for centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020142168 CN201650856U (en) | 2010-03-25 | 2010-03-25 | Impeller for centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201650856U true CN201650856U (en) | 2010-11-24 |
Family
ID=43116091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020142168 Expired - Fee Related CN201650856U (en) | 2010-03-25 | 2010-03-25 | Impeller for centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201650856U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922468A (en) * | 2010-03-24 | 2010-12-22 | 南通大通宝富风机有限公司 | Impeller of centrifugal fan |
| CN111794991A (en) * | 2020-09-08 | 2020-10-20 | 山东天瑞重工有限公司 | Magnetic suspension double round air-blower |
-
2010
- 2010-03-25 CN CN 201020142168 patent/CN201650856U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922468A (en) * | 2010-03-24 | 2010-12-22 | 南通大通宝富风机有限公司 | Impeller of centrifugal fan |
| CN111794991A (en) * | 2020-09-08 | 2020-10-20 | 山东天瑞重工有限公司 | Magnetic suspension double round air-blower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20130325 |